Roller bearing



v J. w.AFoLEY ROLLER BEARING Oct. 16, 1928.

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nommamame Filed March 14, 1927l 2 sheets-sheet 2 Patented oct. 1e, 1928.

UNITEDSTAr-ss OFFICE. 7

JOHN W. nommer CHICAGO, ILLINQIs ,e

ROLLER BEARINGQV f Appnation mea mich 14, 1921. serial No '175,o31`.

This invention relates'to improvements in roller bearings, and one of theI obJects of the inventionis to provide an improved bearing ot this character havingY means for' reduc-` ino to a minimum both radial andthr'ust friction between the parts. l

To the attainment of these, ends and the accomplishment of other new and useful objects as will appear, the inventiongconsists in the features of novelty in substantially the construction, combination and arrangement of the several parts, hereinafter more'fully described and claimed and shown inthe accompanying drawings illustrating this' in'ven`` tion, and in which Figure 1 is a longitudinal sectional view of a bearing of this character constructed in accordance with the-principles of thisinvention.

Figure 2 taken online 2--2, Figure, l.

Referring more particularly to the drawings the numeral 10 designates acasing, havis a transverse sectional view Y ing end Walls 11-12 which are secured in position in any suitable manner, such a's'by means of fastening bolts 13, whereby the end Walls may be removed When desired'.

` Projecting into the casing and through the end walls is a shaft 15, Which has bearings in the end members 11 and 12 "and theend members are shaped to receive packing-16 which is held in position by means of packing nuts 17-18 encompassing the shaftand having threaded engagement With the respective end members 11 and 12. n

Encempassing the shaft 15V is a sleeve 19 which is secured thereto for rotation therewith in any suitable manner such as by means ot a key or fastening device 20. This sleeve 19 is of an external diameter considerablyl greater than the diameter of the shaft. 15 and the ends of the sleeve 19 terminate short of the end Walls 11 an d 12. Bearingmembers 21 22 are provided against the respective end Walls 11, and balls 23-24 are arrangedV between the respective bearing members 21-22 and the adjacent ends of the sleeve 19 to provide end thrust bearings for the sleeve.

Encompassing the sleeve 19 and having rolling contact therewith are a plurality of elongated rollers 25 which are of a length somewhat less than the length of the casing and may be of any desired diameter. Arranged bet-Ween the'ends of the rollers 25 and the respective end members 11 and 12 of the 28-29arearranged between the ends of the rol1lers'25 and the ladjacent faces of thel'an-l iu ar Contact therewith. i' 4 Balls 30'-`31"are arranged between the'annularmembers'2G-27 and the respectivev end members 11l and 12 and have free rolling contactwith'each; These annularmernbers and the ball bearings 'co-operating therewith form `end thrustbearings for the rollers 25. `v y i Eucompassing the rollers 25 yis'afsleeve 32 with the inner face 33 of'which therollers 25 have rollinfgcontact. Y The lsleeve 32 is preferably of ay length sub? stantially equal to the length of the casing and is provided withv a plurality of circumferential grooves 34 opening through the periphery thereof'and yintermediate the ends of the sleeve; These groovesB/i are spaced from each other vfor any'de'sired distance in directions lengthwise of the longitudinal axis of the sleeve, andballs 35'are provided, 'which are seated and roll -withinfthe grooves 34,'and

members 26%27 vand have Vfree rolling also have frolling Contact with the inner suringmovement with respect toeach other and also circumferentially 'about the s'leeve32.' The ends ofthe1 sleeve adjacent' themd vuj.'1l.l s11v-12 'are preferably grooved `as at37 to receive bal'ls'SS, which"latter'rolllinthe grooves 37 and also have Contact with the inp ner face 3G of the housingand with theinner faces ot the respective vend members 11 and 12. These balls 38 provide end thrust `bearv ings for the sleeve 32.

With this improved construction it will be manifest that all of the parts of the bearing are free to rotate within the housing and the balls together with the rollers bein inde-` pendent of each other Will rotate in ependently, and the sleeve 32 will float Within the casing.

Thiswill result in a very sensitive bearing and Will reduce to a minimum the radial as Well as the longitudinal friction and end thrust of the parts.

lfhiie the preferred form of the invention has been herein shown and described, it is to be understood that various changes may be made in the details of construction and in ooY the combination and arrangement of v(the several parts, Vwithin-the'Y scope 4of thecl-aims, without departing from the spirit `of this invention.

What is claimed as new-is.:-

l. A roller bearing embodying a casing, a shaft projecting thereinto, a bearingsurface carried by the .shaft within the casing, rollers encompassing said surface and having a rolling centactfltherewith, a freely rotatable sleeveencompassing said rollers and'with the inner face wliichsleeves said lrollers have a contact, and a plurality of series of rolling balls extending circumferentially about 'the' sleeve and having .rolling contact with the outer periphery of the sleeve and the casing wall.. v

2".' A roller bearing embodying casing, a shaftV projecting thereinto, a `bearing surface carried .the shaft within the casing, rollers encompassing said surface and having a rolling. .contactctherewitm a freely rotatable sleeve encompassing said rollers and with the inner face of which sleeve said rollers have a. rollingy contact, and a plurality of series of balls vextending' circumferentially about the slee-veand havingrollingjcontactwith the outerperiphery ofthe sleeve and the. casing wall,

, wall, thesaidseries being independent of each otheran'dthe balls ofjeachseries being independent, and means maintaining the said seriesfs'paced fromeach 'other yin ldirections lengthwise'of the 4longitudinal'axis of the Y sleeve'. 'n

vlyrl74. 1LA -roller bearing embodying a casing, a

.shaft projecting thereinto, a bearing surface 'carrieclby the shaft Within the casing,V a series of rollers contacting with and extending about's'aid suiifac`e`a freely rotatable sleeve encompassing therollers and with theinner ysurface' of which sleeve the rollers have rolling contact, acircumferential groove in the periphery of the sleevepa plurality of independent `balls rolling in said groove land having a (rolling contact with thefsurrounding Wall fof said casing, anda series of balls adjacent leach 'endl ofv the sleeve, each'of the last recited series embodying rollers independentY of each other and having rolling Contact with the sleeve and with two of the walls of. said casing. A n

5. A roller'bearing embodying casing, a shaft projecting thereinto, a bearing surface carried by the shaft Within thel casing, a lseries of rollers encompassing and having rolling v contact with saidsurface, a sleeve encompassing said series of rollers-and .with the inner surface of which sleeve saidrollers have rolling contact, a plurality of. circumferential grooves opening through theperiphery of the sleeve and spaced. in directions lengthwise of the longitudinal axis of the sleeve, and a series of independent balls rolling in each ofthe grooves-and also having rolling contactV with the surrounding wall of the casing, the' series l' of balls adjacent each een-dl 'off the sleeve havin'g rollingc'ontactwith both the surround-V ing wall and the respective adj acent: end walls ofthe Casing-i 1:11 testimony name to this specification, on March, A. D; 1927'.

' JonNw. FOLEY.

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whereof I have signed. my l this .11th day. Off g 

